dc41086c57
In this commit, we add a new metric `sent_total_size` keeping track of how many bytes of hints a node has sent. The metric is supposed to complement its counterpart in storage proxy that counts how many bytes of hints a node has received. That information should prove useful in analyzing statistics of a cluster -- load on given nodes and where it comes from. We also change the name of the matric `sent` to `sent_total` to avoid the conflict of prefixes between the two metrics.
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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* Modified by ScyllaDB
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* Copyright (C) 2023-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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// Seastar features.
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#include <seastar/util/bool_class.hh>
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// Scylla includes.
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#include "locator/host_id.hh"
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// STD.
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#include <cstdint>
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namespace db::hints {
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namespace internal {
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/// Type identifying the host a specific subset of hints should be sent to.
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using endpoint_id = locator::host_id;
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/// Tag specifying if hint sending should enter the so-called "drain mode".
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/// If it should, that means that if a failure while sending a hint occurs,
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/// the hint will be ignored rather than attempted to be sent again.
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///
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/// The tag is useful in communication between internal data structures
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/// of the hinted handoff module.
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using drain = seastar::bool_class<class drain_tag>;
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/// Statistics related to hint sending. They should collect information
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/// about a whole shard.
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struct hint_stats {
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uint64_t size_of_hints_in_progress = 0;
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uint64_t written = 0;
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uint64_t errors = 0;
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uint64_t dropped = 0;
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uint64_t sent_total = 0;
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uint64_t sent_hints_bytes_total = 0;
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uint64_t discarded = 0;
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uint64_t send_errors = 0;
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uint64_t corrupted_files = 0;
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};
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} // namespace internal
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} // namespace db::hints
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